1.A bank manager wants to know the average amount of time customers of his bank must wait in line.He polled the first 100 customers was polled every day for one-week time frame and asked their average wait time at the bank.It was found that 127 of the 500 were extremely dissatisfied with the amount of time they had had to wait in line in recent months.

a.Identify what the population and the sample of the study is.

b.What type of sample was this? Systematic, Convenience, Stratified, or Random?

c.Give an example of how the manager could make a study to representEACH of the other three sampling methods.